POWER BLOCKING APPARATUS CAPABLE OF BLOCKING POWER SUPPLY BY SENSING VARIOUS ARCS AND OVERLOAD GENERATED IN AN ELECTRIC CIRCUIT

摘要

PURPOSE: A power blocking apparatus is provided to prevent a fire by sensing a disaster including a fine arc and a high current type arc and blocking a power source.;CONSTITUTION: A power blocking apparatus (10) comprises: an input power terminal (18); an output power terminal (19) such as a socket for inserting a plug of a load device; a fine arc detector (11) which is connected between the input power terminal and the output power terminal; a high-current arc detector (12); a delaying unit (13); an overload detector (14); an operation voltage generation unit (15); a power blocking unit (16); and a filtering unit (17).;COPYRIGHT KIPO 2013;[Reference numerals] (11) Fine arc detector; (12) High-current arc detector; (13) Delaying unit; (14) Overload detector; (16) Power blocking unit; (17) Filtering unit; (AA) Fine arc detection current; (BB) Arc detection signal; (CC) High-current arc detection current; (DD) Overload detection signal